Bio-diesel fuel engine system and bio-diesel fuel engine operating method

Abstract

A bio-diesel fuel engine system and bio-diesel fuel engine operating method capable of producing a biomass fuel from a liquid state biomass source material of a fat-containing vegetable or animal oil allowing fuel to be combusted in a conventional diesel engine while providing the benefits of low fuel consumption, stable engine operation, and extended engine service life, with compared to use a biomass fuel reformed by methyl-ester method.

1. A bio-diesel fuel engine system that uses a liquid state biomass source material of a fat-containing animal or vegetable oil as a liquid fuel base, comprising:
 a device that produces a biomass fuel by adding a surfactant to the liquid fuel base and atomizes the liquid fuel base to a particulate diameter of less than 10 μm with an atomizer, and 
 a biomass fuel supply system supplying the biomass fuel to a fuel injector which sprays the biomass fuel into engine cylinders to power a diesel engine, 
 wherein the atomizer comprises a plurality of nozzles for accelerating the liquid fuel base entering the atomizer; a plurality of freely rotatable rotors disposed in an axial alignment opposing each nozzle; a mixing chamber; and a magnetizing unit, 
 the nozzles and rotors being alternately arranged along a fuel flow path; 
 each rotor having a rotor face disposed at a right angle in the flow path and providing a surface against which the liquid fuel base collides; 
 diagonal slits formed though each rotor at a perimeter of the rotor face, wherein the slits shear and break up the flow of liquid fuel base while concurrently generating an axially revolving fuel flow pattern when the rotor rotates; 
 the nozzles being disposed in a direction of fuel flow with an upstream nozzle having a diameter smaller than that of a downstream nozzle; 
 the rotors being disposed in the direction of fuel flow with an upstream rotor having a diameter smaller than that of a downstream rotor; 
 the diagonal slits being disposed in the direction of fuel flow with an upstream slit having a size smaller than that of a downstream slit; 
 the mixing chamber comprising a curved concave surface in a form of cupped wall and being disposed on a downstream side of the nozzles and rotors and creating a structure that agitates and mixes the flowing fuel within the mixing chamber as a result of collision of the flowing fuel with the cupped wall, and 
 the magnetizing unit being aligned with a direction, of fuel flow as a jacked-like structure extending along and encompassing the nozzles, rotors and mixing chamber for magnetizing the liquid fuel base; 
 wherein the liquid state biomass source material is generated without employing a methyl-ester reforming process. 
 
     
     
       2. The bio-diesel fuel engine system according to  claim 1 , further comprising a petroleum-based fuel supply system supplying a petroleum-based fuel and a switching device that connects said biomass fuel supply system and petroleum-based fuel supply system with said fuel injector, said switching device switching the supply of fuel from either fuel supply system to said fuel injector. 
     
     
       3. The bio-diesel fuel engine system according to  claim 1 , further comprising a heating device installed to said biomass fuel supply system to heat the biomass fuel. 
     
     
       4. The bio-diesel fuel engine system according to  claim 1 , wherein a reformulation unit, which includes said atomizer and which produces the biomass fuel from the liquid fuel base, is detachably connected to said biomass fuel supply system. 
     
     
       5. The bio-diesel fuel engine system according to  claim 4 , wherein said reformulation unit further comprises a biomass fuel holding tank which stores the biomass fuel. 
     
     
       6. The bio-diesel fuel engine system according to  claim 5 , wherein a fuel storage structure is structured by said biomass fuel holding tank and a petroleum fuel holding tank, said petroleum fuel holding tank being detachably connected to said petroleum-based fuel supply system. 
     
     
       7. A method of operating a bio-diesel fuel engine using a liquid state biomass source material of a fat-containing animal or vegetable oil as a liquid fuel base, comprising:
 producing a biomass fuel by adding a surfactant to the liquid fuel base and atomizing the liquid fuel base to a particulate diameter of less than 10 μm with an atomizer, and 
 supplying the biomass fuel, through a biomass fuel supply system, to a fuel injector which sprays the biomass fuel into engine cylinders to power a diesel engine, 
 wherein the atomizer comprises a plurality of nozzles for accelerating the liquid fuel base entering the atomizer; a plurality of freely rotatable rotors disposed in an axial alignment opposing each nozzle; a mixing chamber; and a magnetizing unit, 
 the nozzles and rotors being alternately arranged along a fuel flow path; 
 each rotor having a rotor face disposed at a right angle in the flow path and providing a surface against which the liquid fuel base collides; 
 diagonal slits formed though each rotor at a perimeter of the rotor face, wherein the slits shear and break up the flow of liquid fuel base while concurrently generating an axially revolving fuel flow pattern when the rotor rotates; 
 the nozzles being disposed in a direction of fuel flow with an upstream nozzle having a diameter smaller than that of a downstream nozzle; 
 the rotors being disposed in the direction of fuel flow with an upstream rotor haying a diameter smaller than that of a downstream rotor; 
 the diagonal slits being diagnosed in the direction of fuel flow with an upstream slit having a size smaller than that of a downstream slit; 
 the mixing chamber comprising a curved concave surface in a form of cupped wall and being disposed on a downstream side of the nozzles and rotors and creating a structure that agitates and mixes the flowing fuel within the mixing chamber as a result of collision of the flowing fuel with the cupped wall, and 
 the magnetizing unit being aligned with a direction of fuel flow as a jacked-like structure extending along and encompassing the nozzles, rotors and mixing chamber for magnetizing the liquid fuel base; 
 wherein the liquid state biomass source material is generated without employing a methyl-ester reforming process.